<template>
  <div class="goodsinfo-container">

    <transition
      @before-enter="beforeEnter"
      @enter="enter"
      @after-enter="afterEnter"
    >
      <div class="ball" v-show = "ballFlag" ref="ball"></div>
    </transition>
    
    <!-- 商品轮播图区域 -->
    <div class="mui-card">
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
            <swiper :lunbotuList="lunbotu" :isfull='false'></swiper>
        </div>
      </div>
    </div>

    <!-- 商品购买区域 -->
    <div class="mui-card">
      <div class="mui-card-header">{{goodsinfo.title}}</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p class="price">
            市场价：<del>${{goodsinfo.market_price}}</del> &nbsp; &nbsp; 销售价：<span class="now_price">${{goodsinfo.sell_price}}</span>
          </p>
          <p>购买数量：<numbox @getcount="getSelectedCount" :max="goodsinfo.stock_quantity"></numbox></p>
          <p>
              <mt-button type="primary" size="small">立刻购买</mt-button>
              <mt-button type="danger" size="small" @click="addToShopcar">加入购物车</mt-button>
          </p>
        </div>
      </div>
    </div>

    <!-- 商品参数区域 -->
    <div class="mui-card">
      <div class="mui-card-header">商品参数</div>
      <div class="mui-card-content">
        <div class="mui-card-content-inner">
          <p>商品货号：{{goodsinfo.goods_no}}</p>
          <p>库存情况：{{goodsinfo.stock_quantity}}</p>
          <p>上架时间：{{goodsinfo.add_time | dataFormat}}</p>
        </div>
      </div>
      <div class="mui-card-footer">
        <mt-button type="primary" size = "large" plain @click="goDesc(goodsinfo.id)">图文介绍</mt-button>
        <mt-button type="danger" size = "large" plain @click="goComment(goodsinfo.id)">商品评论</mt-button>
      </div>
    </div>
  </div>
</template>

<script>
import swiper from '../subcomponents/swiper.vue'
import numbox from '../subcomponents/goodsinfo_numbox.vue'

export default {

    data(){
        return {
            id: this.$route.params.id,
            lunbotu:[],
            goodsinfo:{},
            ballFlag:false,
            selectedCount: 1
        }
    },
    created() {
        this.getLunbotu();
        this.getGoodsInfo();
    }, 
    methods:{
        getLunbotu(){
            this.$http.get('api/getthumimages/' + this.id).then(result=>{
                if(result.body.status === 0) {
                    result.body.message.forEach(item=>{
                        item.img = item.src
                    })
                    this.lunbotu = result.body.message;
                    
                } else {

                }
            })
        },
        getGoodsInfo() {
          this.$http.get('api/goods/getinfo/' + this.id).then(result=>{
            if(result.body.status === 0) {
              this.goodsinfo = result.body.message[0]
            } else {

            }
          })
        },
        goDesc(id) {
          this.$router.push({name:'goodsdesc', params:{id}})
        },
        goComment(id){
          this.$router.push({name:'goodscomment', params:{id}})
        },
        addToShopcar(){
          this.ballFlag = ! this.ballFlag;
          var goodsinfo = {
            id:this.id,
            count:this.selectedCount,
            price:this.goodsinfo.sell_price,
            selected:true
          }
          this.$store.commit('addToCar', goodsinfo)
        },
        beforeEnter(el){
          el.style.transform = "translate(0,0)";
        },
        enter(el, done){
          el.offsetWidth;
          const ball = this.$refs.ball.getBoundingClientRect();
          const badgePosition = document.getElementById("badge").getBoundingClientRect();
          const xDist = badgePosition.left - ball.left;
          const yDist = badgePosition.top - ball.top;
          el.style.transform = `translate(${xDist}px,${yDist}px)`;
          el.style.transition = " all 1s cubic-bezier(.4, -0.3, 1, .68)";
          done();
        },
        afterEnter(el){
          this.ballFlag = !this.ballFlag;

        },
        getSelectedCount(count){
          this.selectedCount = count;
        }
    },
    components:{
        swiper,
        numbox
    }
};
</script>
<style lang="scss" scoped>
.goodsinfo-container{
    background-color: #eee;
    overflow: hidden;
    .now_price{
      color:red;
      font-size:16px;
      font-weight: bold;
    }
    .mui-card-footer {
      display: block;
      button{
        margin-top:15px;
      }

    }
    .ball{
      width:15px;
      height:15px;
      border-radius: 50%;
      background-color: red;
      position:absolute;
      z-index: 99;
      top:406px;
      left:148px;

    }

}

</style>